by 1953, said to have been in use in radio broadcast jargon since early 1940s, American English, possibly from Yiddish glitsh “a slip,” from glitshn “to slip,” from German glitschen, and related gleiten “to glide” (see glide (v.)). Perhaps directly from German. Apparently it began as technical jargon among radio and television engineers, but was popularized and given a broader meaning c. 1962 by the U.S. space program.
It’s just a black cat, and then another one… that could be the same one.
https://www.etymonline.com/word/glitch